20253352135 has 16 divisors (see below), whose sum is σ = 25738956576. Its totient is φ = 15246450688.

The previous prime is 20253352099. The next prime is 20253352181. The reversal of 20253352135 is 53125335202.

It is a cyclic number.

It is not a de Polignac number, because 20253352135 - 2²³ = 20244963527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20253352097 and 20253352106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444327 + ... + 487783.

It is an arithmetic number, because the mean of its divisors is an integer number (1608684786).

Almost surely, 2^20253352135 is an apocalyptic number.

20253352135 is a deficient number, since it is larger than the sum of its proper divisors (5485604441).

20253352135 is a wasteful number, since it uses less digits than its factorization.

20253352135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48962.

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 20253352135 its reverse (53125335202), we get a palindrome (73378687337).

The spelling of 20253352135 in words is "twenty billion, two hundred fifty-three million, three hundred fifty-two thousand, one hundred thirty-five".